> For the complete documentation index, see [llms.txt](https://dreamn-bsc.gitbook.io/dreamn_whitepaper/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://dreamn-bsc.gitbook.io/dreamn_whitepaper/sleep-to-earn-product/dreamn-application/challenges.md).

# Challenges

Each challenge is set by DreamN with a corresponding BNB reward. When accepting a challenge, users need to complete the mission to receive the rewards. Each challenge has different requirements to be completed; if the mission fails you will not be able to receive the rewards. A small fee is charged to accept the challenge to make sure users are committed to the challenge.

* **Sleep Cycle**- The sleep time users need to sleep.
* **Rewards** - The amount of rewards that users can earn after completing a mission.
* **Challenge Difficulty** - The difficulty of the mission.